#定义一个字典对象
scoreDict={'语文':100,'数学':98,'英语':98}
print(type(scoreDict))
print(scoreDict)

chScore=scoreDict.pop('语文')
print('语文成绩是:%d'%chScore)\

medScore=scoreDict.pop('化学',20)
print('化学成绩是:%d'%medScore)


dickeys=scoreDict.keys()
print(type(dickeys))
print(dickeys)
